肖

参考的一些资料：

http://www.jianshu.com/p/98407f0c175b

http://www.jianshu.com/p/815fc21b9d0d

http://www.jianshu.com/p/4e92a6154c80

问题：

- ERROR | [iOS] xcodebuild: Returned an unsuccessful exit code. You can use `--verbose` for more information.
- NOTE  | [iOS] xcodebuild:  xcodebuild: error: 'App.xcworkspace' does not exist.

解决办法：

升级升级CocoaPods。

gem update cocoapods